What is the answer y -3x 4?

The expression "y - 3x + 4" is not a question, but rather a mathematical expression. It represents a combination of variables (y and x) and constants (3 and 4) connected by addition and subtraction operations. The final value of this expression will depend on the specific values assigned to the variables y and x. To simplify or evaluate this expression further, specific values for y and x would need to be provided.